How do I change "At Insertion Point" to "Below Current Line" globally?

Hello,

I have a book that I will be converting to Structured FrameMaker. All of the graphics are referenced to the chapters with the Anchored Frame set to:

"At Insertion Point"

"Distance Above Baseline: 0.0 pt"

If I do not change the Anchor Frame to "Below Current Line", then all of my graphics will float above the text, when in Structured FrameMaker and I will have to manually set each graphic to "Below Current Line".

Since I have already set all the graphics to "At Insertion Point", I was wondering if there was a way I could change this to "Below Current Line" - either through Find/Change or through some plugin.

I appreciate any/all suggestions related to this topic.

Thanks,

Jim